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How can I plot with 2 different y-axes?

I would like superimpose two scatter plots in R so that each set of points has its own (different) y-axis (i.e., in positions 2 and 4 on the figure) but the points appear superimposed on the same figure. ...
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Difference between C++03 throw() specifier C++11 noexcept

Is there any difference between throw() and noexcept other than being checked at runtime and compile time, respectively? ...
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jQuery - If element has class do this

I need an jQuery script that will see if any element has an specific class and do an action like change position. 1 Answer ...
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How to change a PG column to NULLABLE TRUE?

How can I accomplish this using Postgres? I've tried the code below but it doesn't work: 1 Answer ...
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New lines inside paragraph in README.md

When editing an issue and clicking Preview the following markdown source: 4 Answers 4 ...
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How do I convert from stringstream to string in C++?

How do I convert from std::stringstream to std::string in C++? 4 Answers 4 ...
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How to define several include path in Makefile

New to C++; Basic understanding of includes, libraries and the compile process. Did a few simple makefiles yet. 2 Answers ...
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How to delete a folder and all contents using a bat file in windows?

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Navigation drawer - disable swipe

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Rotating a point about another point (2D)

I'm trying to make a card game where the cards fan out. Right now to display it Im using the Allegro API which has a function: ...